@2:23 - Got a nice mix of batteries just to please everybody.. I laughed out loud at that statement.

What makes your channels so fantastic is you show your mistakes and how to fix them. When you solder you're gonna lift pads, rips traces and generally screws up. Learning how to deal with difficulties is what makes one a pro.

It’s like a soccer match (better than). When Vince finds the faulty I want to hug everyone in the room.

You should bring out a range of tee shirts ,your first slogan " Oh hang on a minute "

Another brilliant fix Vince, well done 👏 I really do love how you just don't care whether it'll be worth it. That theme tune definitely reminded me of 90s games 🎮 🤣

Before you said this was one of your favorite fixes, I was already thinking the same! What at satisfying and not insanely difficult problem to fix. I really enjoy watching you try to fix analog audio devices. Really cool fault-finding technique you used with the aux cable going around the board!

Line level audio signal always travel trough capacitors to eliminate DC and pass AC signal. Both coils are dead, multitester can measure them but they are open and are 3.3 mH (milli Henry) not micro, if its micro should say uH or μH (miu [greek alphabet] Henry), nH = nano Henry. That liquid thing may not be water, more likely its electrolite from some leaky near caps, which may be the reason for coroded and broken wires on those coils. The power Amp chip is the long one standing up with near dosen pins and heatsink on top (its called SIL package [Single In Line]). Anyway GOOD JOB THERE!

The legs of the inductor on the part on the inside looked to have the green death. Maybe over the years the seal around the legs failed and moisture built up inside.

I do love your enthusiasm, when you hear the music..... It is exciting to fix things, isn't it??? I know, I'm a repair nerd......

One of, if not the best. Although I did shout "oh Vince" when I thought you'd broken the key when you bent it up 😂

Great video Vince. Different fixes each time. I am loving it. 5 Stars.

It always amazes me the way you fault-find. You keep saying you're not a professional but that's not true. I'm learning so much watching your videos. Well done Vince!!!!

You have been inductered into the Fix-It Hall of Fame. Very COoL. Cheers!

Is there no limit to your talent? Fixed a piano and plays it ! Superb! Another brilliant video Vince. Seriously good job!

Pretty good work. You learned a lot over the years. Nice how You Analysed the data sheet of the ics and followed the curcuits to the inductors.

Your trouble shooting skills are getting better every video Vince, well done that was really impressive 👍❤

Hello vince. That Operational Amplifier is commonly known as Op-Amp and its not a Audio Amplifier is a analog voltage amplifier made for mathematical operations. It has two inputs and one output, it reads the inputs and outputs the difference between the inverting input - and the non-inverting input +, that is the operation, its also an amplifier because it amplifies that difference by about 100.000 times. They were created for maths on analog computers but nowadays are used for signal amplification. If you tie the output into the inverting input, it will output the same as the non-inverting input. If you than use a simple resistor voltage divider to half the output voltage before it gets to the inverting input it will output double the voltage of the non-inverting input to make both inputs equal.

I’m always amazed by your perseverance!

that was such a great watch beginning to end thanks very much. I have just bought a couple of broken casio keyboards bumbling my way through them.but and I have learnt so much from watching this vid. Ive already got one working and this has inspired me for the next. thanks again! ive watched heaps of these types of vids and this was by far the most helpful.

The input labels on the opamp are Input Inverting and Input Normal, sometimes marked as IN+ and IN-.

watched a lot of your videos always been into electronics and fixing stuff even tho I don't have a clue lol but a bit like you trial and error components are so cheap that is worth dabbling with and you learn along the way what to look for, you have come a long way from your first videos hats off to you love the way you go about things on fault-finding I binge watch your videos keep it up love the channel.

Bloody Excellent Vince. Well done.

Great job! Fur Elise is what that was called in my old Yamaha keyboard... I learned that one too. Mine was big, full sized, but had a great lcd with a learn mode that was pretty cool.....

An oscilloscope would be handy for diagnosing audio equipment. You can get a USB one that outputs to your PC at a reasonable cost.

That's interesting. Inductors failing is really the last thing i'd think to check!

Man, when you screamed "Yeeees, it's fixable!" I started screaming also

Very good Vince, always enjoy your videos on a Friday after a hard week at work. Love the keyboard skills lol. Mick 👍🍻

I'm consistently impressed by these repairs and the methodology you go through to figure them out. Pretty far from the "shove a second and third disc into a Wii with a stuck disc to try to make a disc sandwich" method used in the first video of yours I saw! :-)

Big Fan!!! Please keep these Trying To Fix videos coming!!! I enjoy the Laptop fixes and when you use them in future videos!!! The theme you played was one of the tunes Benny Hill used in alot of his chase scenes!!! The other tune he used was Yakety Sax!!! Brings back many fond memories from here across the pond!!! Many Thanks!!! J.A.M.

Great stuff! Restored my faith in electronics repair!

you are the best. that was a very good fix. and i loved the song that you played at the end. Keep up the good work.

That was a fun and educational fixer! Now I'm off for a cuppa Yorkshire Tea!

Again, great video Vince !

I clocked you playing a snippet of "Oh Can You Wash My Father's Shirt" there!

nice! i loved the indepth look into the failed components

Well don’t Vince, my other half thinks I’m mad watching you! but I enjoy it thanks

Amazing love to see these repairs

Real nice repair video! Good job!

25:15 Hah, how fitting, it's playing Song of Joy!

Was hoping for a rendition of Harold Faltermeyer - Axel F at the end

Great fix video Vince.

yes! You should totally make that your intro song! It sounds like the meme elevator music everyone uses only it is something unique and different.

great fix, I agree it was one of your best

A nice fix and a little concert from Mr. Vince Beethoven. Great!

Recognised Fur Elise right away. I should pull out my old Casio keyboard and dust it off. Great fix, as usual!

great fix vince, very entertaining

That tune at the end was great, and you only made it better, Vince :)

Great fix Vince, I really enjoyed that. Regards. Paul

great video Vince mate

This was Beethovens Für Elise, quite a famous training etude hevwrote for obe of his music pupils called Elise...

Amazing fix mate! You surely a wizzard!

Fur Elise i learned this to play on an iPad 3 :p Nice fix man as always!

great video and fix mate !!!

Hello Vince, how are you :) take care I love you're trying to fix videos :)

Enhorabuena me encanta ver tus vídeos. Congratulesion

Vince, what you should have tested would be for example ground to last known working location, and left/right audio lead to the left/right audio inductor leads, so testing the audio into the inductor, as well as out, and then vise versa. as it was you found the fault was both inductors, but wasn't really proven until you done the meter readings on the new inductors, that plus the piano working with the new inductors, but could have been just as easily a fault with just 1 inductor, and you wouldn't know because you moved both audio leads to the new location that was untested as working or not. probably best replacing both together anyway, as usually best to replace electronical things in pairs anyway to reduce the chance of needing to replace it in the near future. Great fix though. :)

great fix 👍, op -amp inputs are inverting and non-inverting (In1= non inverting ) ( Ii1= inverting )

nice one vince i would never of suspected the inductors.

i think your audio chip/amp is the stand up ic nr the white lable. hummm, a couple of coil things, never seen that happen b4, good job, well done.

i had that exact keyboard when i was younger and it was a great little keyboard

Thanks again for your video I'm glad you are making decent quality videos

A signal tracer is fantastic for these kinds of things. Look it up vince, I think you'd find great use out of one.

Mate, if you lived in the US, I would come hang out. Love your videos

Very nice!

Excellent as always Vince! I wanted to add another like just for the iTunes comment at the end. 😁🤣

do more keyboard fixes please. these videos are pretty rad.

Hello Vince I'm a new subscriber great video mate 👍

@15:35 the Ii2 is Inverted Input 2 (its an I not an L) standard OP-AMP Inputs.

I was watching this while working on stuff so I was kinda just listening. When you were talking about millihenry vs microhenry, I thought you were saying Michael Henry as opposed to microhenry, and I was like "does an entire man control this or smth?"

great job

awesome fix on video

Love the new outro.

Nice fix :) I was thinking, as it didn't include the power supply, perhaps there was some kind of power surge, PSU failed and killed those inductors?

Congratulations on reinventing elevator music! Great fix Vince :)

A bright light held under the board can assist in following the traces. Try it sometime and you'll see. Thanks Vince

Those inputs on the op amp aren't LI, they're II- inverting input. Operational amplifiers have a positive input and a negative input; they subtract the negative input from the positive input and amplify the result. That means that by connecting the output to the inverting input (the negative one) via some resistors, you can create "negative feedback" and thereby precisely set the gain of the amplifier in a way that is stable across a range of power supply voltages, thermal conditions, etc. You can also use capacitors and inductors in the feedback network in order to effectively "amplify" the values of those components and build lowpass or highpass or bandpass filters with much more economical component choices.

Another one saved from the land fill :) great fix

Haha, I love it when you go “ah hold on a minute.....”. Usually exactly when I’m going, ‘Vince , what tf man’. Keep up the good work fella and stay safe.

Great fix, Beethoven would be proud of that rendition

I'm not sure if you got your answer about the OPAmp question? the 1i and 1n 2i and 2n Basically what it means is it is a Dual OPamp and each OPamp has an inverting pin and a non-inverting pin (i for inverting)( N for non-inverting). Op-amp are rather useful and are found in many many many electronics, and they do blow even though they are rather reliable IC

Always check headphone jack first before tearing down if no sound.

Excellent =D Nice detective work there Vince! mH = milli henry. Its hard to believe that both failed like that! Amazing job =D

... like all your projects, when you achieve it we all achieve it, your videos repairing things until they relax! I thank you for that work that you share with us, I made one of your projects, the "portable" ps4, I look great, you Would you encourage us to make a portable PS2? It is very fashionable, I am doing it now, with a disc reader, let's see if you share one of these marvels with us one of these days, greetings from Latin America!

Another fine video. One nitpick I have is that you seem (lately, in older videos not so much) to put the item back together before actually verifying that the "fix" actually works. Though you seem to be able to get away with it :P P.S: Dig the new theme song :P

Nice result.. It is strange that both inductors would have gone OC....this may re-occur later, I suspect the fault is somewhere after these inductors....but for now, enjoy the Yamaha DSP chip for all its worth....

Oui mate I think I know why those inductors failed. Their heavy compared to the other components and wobbling around weakens the bond from the pins to those tiny wires. You'll likely want to secure those with some hot snot or silicone so they don't go wrong again.

as usual another great fix Vince.. Im going to keep asking though ..... Any my Vince T-Shirts or Hoodies coming ??

Oooh It must be Bohemian Rhapsody Haha. I have to agree though, I do like the new Theme music. Well done mate I love your work.

Nice my mate

I saved up my paper round money for this and bought it from Argos. I was chuffed to bits with it! I have the full-size version of it now! Fifteen quid from a chazza!

Cant wait to play some mozart

Strange they both failed, perhaps bad storage conditions. You can just test those with a continuity test if not bothered about the actual value.

Thanks Vince, I have the same Yamaha PSS-12 with the same issue. Your video helped me, big up! I have found out simply replacing the mH coils by a 10 cm of multithread copper wire on each fixed the issue. What could go wrong? What is the purpose of those coils? I have read maybe they are for filtering noise?

Awsome!!! That is a great video! Thank you and you shude get a secund channel trying to fix music edition :D

Look at You! You even got a bit of a tune in You! Yes, please make that bossa nova tune Your new intro music! *lol* Good job tracing down those two faulty inductors ^_^

Wow I had one of these (not this exact model, it was the PSS-6) when I was younger as my first piano!

Hi Vince, well, I am struggling a bit as KZfaq decided to no longer support Internet Explorer, so I cannot give this video a thumbs up marking... Will try it on my smartphone... Anyway, you did a very lovely fix on this one and I didn't know that you could play the synthesizer this good! :-) You should neat up your videos with a little bit of your own playing. :-)

Yes another long video, Keep up the brilliant fix it videos 👌

The amount of current passing through those inductors will be negligible. The most common failure mode for these is that the audio frequency vibration causes the bond between the coil and the pcb legs to fail over time.

47:01 there are other versions of the component testers which can also measure inductors. Maybe even yours, but it might have a limited range and those values were outside